Roland Garros WTA: Ann Li vs Diane Parry

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Market context

Ann Li and Diane Parry are scheduled to meet in the first round of Roland Garros women's singles on 28 May 2026. The Polymarket contract currently reflects 100% implied probability for match completion, with conditional USDC tokens on Polygon pricing the outcome as certain to be determined. This pricing suggests the market has assigned negligible risk to cancellation, retirement, or scheduling delays beyond the 7-day window that would trigger a 50-50 resolution.

Historically, Roland Garros maintains one of tennis's strictest scheduling protocols, with first-round matches rarely postponed beyond their original date absent extreme weather or facility damage. Li, ranked outside the top 100, has competed sporadically on the WTA tour since 2022, whilst Parry, a French domestic prospect, typically receives scheduling preference at Roland Garros. Neither player has a documented history of late withdrawals or medical defaults at Grand Slam level, though Li's injury record warrants monitoring given her limited recent match play.

The settlement window closes 4 June 2026, allowing a 7-day buffer beyond the scheduled 28 May date. Traders should monitor the official Roland Garros draw confirmation (typically released 3–4 weeks before the tournament) and any injury announcements from either player's camp. Weather forecasts for Paris in late May and any WTA injury reports in the weeks preceding the tournament represent the primary catalysts that could shift the current pricing away from certainty. The French Tennis Federation's historical commitment to completing first-round matches on schedule supports the current market assessment.

Methodology

This page reviews Roland Garros WTA: Ann Li vs Diane Parry across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.